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Taiwan Semiconductor Corporation P4SMA180CA
- Part No.:
- P4SMA180CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA180CA.pdf
- Description:
- TVS DIODE 154VWM 246VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,882
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Product details
Overview
P4SMA180CA from Taiwan Semiconductor is a bidirectional surface-mount transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for robust overvoltage protection in DC power rails. It features a 146 V working stand-off voltage (VWM), 162–198 V breakdown voltage (VBR), 258 V maximum clamping voltage (VC) at 1.6 A peak pulse current, and 400 W peak pulse power rating per 10/1000 µs waveform - deployed in automotive body electronics and industrial DC/DC converters.
For engineers reviewing the P4SMA180CA datasheet, P4SMA180CA pinout, P4SMA180CA application, or P4SMA180CA equivalent, key selection criteria include bidirectional clamping performance, ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance, moisture sensitivity level 1 handling, and compatibility with automated SMT placement on high-reliability power supply boards.
Technical Context
The P4SMA180CA implements a glass-passivated silicon junction optimized for fast transient suppression with sub-1 ps response time. Its bidirectional configuration enables symmetrical clamping in AC-coupled or floating bus applications without polarity constraints.
It operates across –55 °C to +150 °C junction temperature range and maintains <1 µA reverse leakage at VWM, supporting low-power standby circuits. The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements for enclosed industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 146 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 120–150 V nominal systems |
| VBR min/max | 162–198 V @ 1 mA - Confirmed breakdown threshold ensures predictable turn-on during surge events |
| VC @ IPPM | 258 V @ 1.6 A (10/1000 µs) - Clamping voltage limits downstream IC stress during ISO 7637-2 Pulse 5a transients |
| PPPM | 400 W - Peak pulse power handling supports repeated 10/1000 µs surges without degradation |
| IR @ VWM | <1 µA - Enables use in ultra-low-quiescent-current battery-backed circuits |
| TJ max | +150 °C - Allows operation in under-hood automotive or sealed industrial enclosures |
| Package | DO-214AC (SMA) - Standardized SMT footprint compatible with IPC-7351B land patterns and reflow profiles |
Pinout & Package
DO-214AC (SMA) surface-mount package with cathode band marking; dual-terminal construction with no internal polarity distinction for bidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (bidirectional) | Transient conduction path | Terminals are functionally interchangeable; clamps voltage symmetrically above ±VBR regardless of polarity |
| Cathode band (marking) | Manufacturing orientation indicator | Visible band denotes terminal 1 per JEDEC DO-214AC standard; not functional polarity marker for CA devices |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals or floating DC buses without external polarity management |
| ISO 7637-2 compliance | Validated against Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching noise) waveforms |
| MSL Level 1 | Zero bake requirement prior to reflow; supports unlimited floor life under J-STD-020 conditions |
| Glass passivated junction | Ensures stable VBR and low leakage over 10+ year field life in humid industrial environments |
| Halogen-free & RoHS | Meets IEC 61249-2-21 and EU Directive 2011/65/EU for environmentally constrained deployments |
Applications
| Automotive Body Control Module (BCM) | Industrial DC/DC Converter Input Stage |
|---|---|
Use Scenario: Protects LIN bus transceivers and microcontroller I/O from load-dump transients during vehicle battery disconnection. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector entry point to clamp ±100 V spikes within 1 ps. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V logic interfaces while maintaining signal integrity during normal operation. | Use Scenario: Shields primary-side controller ICs in 48 V–600 V isolated DC/DC converters from switching-induced overshoot. IC Role / Device Role / Timing Role: Fast-clamping element across input bulk capacitor terminals to limit voltage excursions during MOSFET turn-off. Use Value: Reduces need for oversized input capacitors and extends reliability of PWM controllers by limiting VDS stress peaks. |
| Smart Lighting Driver Board | Telecom Power Shelf Protection |
Use Scenario: Safeguards constant-current LED driver ICs from ESD and lightning-induced surges on outdoor-rated streetlight power inputs. IC Role / Device Role / Timing Role: Primary overvoltage clamp on AC/DC front-end rectifier output, coordinated with MOV and fuse. Use Value: Enables IP66-rated luminaire designs with >100 kV ESD immunity and 10-year field lifetime under cyclic thermal stress. | Use Scenario: Provides secondary-level surge protection on -48 V telecom distribution rails exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Bidirectional shunt device placed upstream of hot-swap controllers and PMBus voltage monitors. Use Value: Maintains uninterrupted service during 10/1000 µs surges up to 400 W without triggering system shutdown or brownout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ180CA (Bourns) | Same VWM (146 V), identical DO-214AA package; 600 W PPPM rating vs. 400 W | Higher power handling suits infrequent high-energy surges; larger package requires PCB area increase | Select when surge energy exceeds 400 W but DO-214AA layout is acceptable |
| 1.5KE180CA (ON Semiconductor) | Through-hole TO-204AE (DO-41); same VBR range and VC, but 1500 W PPPM | Not SMT-compatible; used in legacy or high-reliability through-hole assemblies where manual assembly is permitted | Choose only for through-hole production or when higher surge margin justifies board real estate penalty |
Compared with SMBJ180CA and 1.5KE180CA, the P4SMA180CA offers optimal balance of SMT manufacturability, MSL Level 1 handling, and ISO 7637-2 compliance in space-constrained automotive and industrial modules - without requiring layout redesign or thermal derating penalties.
Availability
P4SMA180CA is available at Aetrix Electronics and suitable for automotive body electronics, industrial DC/DC converter input stages, smart lighting drivers, and telecom power shelf protection requiring stable component supply and full traceability.
Supply support for P4SMA180CA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power MOSFETs since 1979.
The P4SMA series belongs to TSC's standardized surface-mount TVS platform engineered for automotive-grade transient immunity and industrial power rail robustness - emphasizing AEC-Q200 readiness, halogen-free materials, and automated placement compatibility.
FAQ
What is the clamping voltage of the P4SMA180CA under a 10/1000 µs surge?
The P4SMA180CA has a maximum clamping voltage (VC) of 258 V when subjected to a 1.6 A peak pulse current with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and ensures downstream circuitry remains within safe operating voltage limits during ISO 7637-2 Pulse 5a events. The P4SMA180CA achieves this clamping performance while maintaining sub-1 ps response time and <1 µA leakage at its 146 V working stand-off voltage.
Is the P4SMA180CA suitable for bidirectional signal line protection?
Yes, the P4SMA180CA is explicitly designed for bidirectional operation, as indicated by the "CA" suffix per Taiwan Semiconductor's ordering nomenclature. Its symmetrical breakdown behavior (162–198 V in both directions) and absence of functional polarity make it appropriate for protecting AC-coupled data lines, differential buses like RS-485, or floating DC rails where voltage reversals occur. The P4SMA180CA does not require orientation-specific placement on PCBs.
Does the P4SMA180CA meet automotive transient immunity standards?
Yes, the P4SMA180CA is specified to meet ISO 7637-2 for Pulse 1 (inductive load dump), Pulse 2a/2b (battery disconnect), and Pulse 3a/3b (switching noise), making it suitable for 12 V and 24 V automotive subsystems. While not AEC-Q200 certified out-of-box, its construction - including glass-passivated junction, MSL Level 1 rating, and –55 °C to +150 °C operating range - aligns with baseline automotive environmental requirements. System-level validation of the P4SMA180CA is recommended per vehicle OEM specifications.
What is the moisture sensitivity level (MSL) of the P4SMA180CA?
The P4SMA180CA has a moisture sensitivity level of MSL Level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions (<30 °C / 60% RH) without baking prior to reflow soldering. This eliminates floor-life tracking and pre-bake steps in high-volume SMT production, reducing process complexity and cost. The P4SMA180CA's DO-214AC molding compound and matte tin-plated leads contribute to this robust moisture resistance.
Can the P4SMA180CA replace the P4SMA180A in an existing design?
No - the P4SMA180CA and P4SMA180A are functionally distinct: the "CA" suffix denotes bidirectional operation, while "A" indicates unidirectional. Substituting P4SMA180CA for P4SMA180A would eliminate polarity-dependent forward conduction capability and alter clamping symmetry. The P4SMA180CA is not a drop-in replacement; layout review and surge testing are required if changing directionality. Always verify the original design intent before interchanging these variants.
P4SMA180CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 1.7A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA180CA FAQ
1.How can I place an order for P4SMA180CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA180CA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P4SMA180CA reliable?
The price and inventory of P4SMA180CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA180CA is usually 5 days.
3.What payment methods are accepted for P4SMA180CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA180CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA180CA?
P4SMA180CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA180CA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P4SMA180CA?
For technical support, including P4SMA180CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA180CA requirements.
6.How does Aetrix verify that P4SMA180CA is sourced from the original manufacturer or authorized distributors?
All P4SMA180CA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P4SMA180CA meets industry standards.
7.What is the process for return or replacement of P4SMA180CA?
All P4SMA180CA units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA180CA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P4SMA180CA part is unused and in its original packaging.
Return procedure for P4SMA180CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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